4 ms·
It's a postmarketing surveillance system [1]. Not a controlled trial, so the true exposure vs. reported cases isn't known for these data from VAERS. > "There w
by dfsegoat 5y ago
It's a postmarketing surveillance system [1]. Not a controlled trial, so the true exposure vs. reported cases isn't known for these data from VAERS.
> "There were 283 observed cases of heart inflammation after the second vaccine dose in those aged 16 to 24 in the VAERS data. That compares with expectations of 10-to-102 cases for that age range based on U.S. population background incidence rates, the CDC said."
They use Observed vs. Expected cases in order to calculate e.g. a reporting odds ratio [2], which can loosely guide you in finding events which occur disproportionately.
1. https://en.wikipedia.org/wiki/Postmarketing_surveillance https://en.wikipedia.org/wiki/Postmarketing_surveillance
2. https://allaboutpharmacovigilance.org/43-reporting-odds-ratio-ror/ https://allaboutpharmacovigilance.org/43-reporting-odds-rati...